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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
b237a168 ZJS |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2017 Zbigniew Jędrzejewski-Szmek | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
21 | #include <string.h> | |
22 | ||
23 | #include "fileio.h" | |
24 | #include "log.h" | |
25 | #include "string-util.h" | |
26 | #include "udev-util.h" | |
27 | ||
28 | int udev_parse_config(void) { | |
29 | _cleanup_free_ char *val = NULL; | |
30 | const char *log; | |
31 | size_t n; | |
32 | int r; | |
33 | ||
34 | r = parse_env_file("/etc/udev/udev.conf", NEWLINE, "udev_log", &val, NULL); | |
35 | if (r == -ENOENT || !val) | |
36 | return 0; | |
37 | if (r < 0) | |
38 | return r; | |
39 | ||
40 | /* unquote */ | |
41 | n = strlen(val); | |
42 | if (n >= 2 && | |
43 | ((val[0] == '"' && val[n-1] == '"') || | |
44 | (val[0] == '\'' && val[n-1] == '\''))) { | |
45 | val[n - 1] = '\0'; | |
46 | log = val + 1; | |
47 | } else | |
48 | log = val; | |
49 | ||
50 | /* we set the udev log level here explicitly, this is supposed | |
51 | * to regulate the code in libudev/ and udev/. */ | |
52 | r = log_set_max_level_from_string_realm(LOG_REALM_UDEV, log); | |
53 | if (r < 0) | |
54 | log_debug_errno(r, "/etc/udev/udev.conf: failed to set udev log level '%s', ignoring: %m", log); | |
55 | ||
56 | return 0; | |
57 | } |